Do I or don't I ?

[GTX-SLI]

Hi
I currently run at [email protected] with a GTS 640mb.
I game at 1920x1200.
Is the newer 512 GTS going make any real world difference?
SLI is not an option (dont like the heat) and GTX is too big without using a hacksaw. Just dont want to be wasting my doh
What do you think?

 

[GTX-SLI]

Thanks for the replies - well aware of the irony Darg